Based on cell research, we are accelerating the social implementation of "Longevity" science,
and as the first step, we are expanding plant, microorganism, and algae-derived "phytoexosome" technology to our main skincare brand.
May 29, 2026
ROHTO Pharmaceutical Co., Ltd. (Headquarters: Osaka City, President: Hidetoshi Segi) has expanded its business and research and development since its founding, focusing on "health" and addressing changes in society and consumers. By connecting its knowledge in Regenerative medicine, skincare, oral medications, and food, Rohto will accelerate the social implementation of "Longevity" science, which is based on the cell science it has cultivated over many years.
As the first step, we will be incorporating "phytoexosome" technology derived from plants, microorganisms, and algae into our flagship skincare brands, "Hada Labo," "MELANO CC," and "Obagi" and rolling it out sequentially. By implementing this not just as a standalone product, but as a foundational technology that spans across our brand group, we aim to deliver cutting-edge "longevity" science to a wider range of customers as a more accessible value.
In recent years, as fields such as health, medicine, beauty, food, and technology converge, and extending healthy life expectancy has become a crucial social theme, our company will integrate the businesses and research and development we have cultivated so far into the realm of "longevity" and implement it in society.
Rohto Pharmaceutical's Longevity, which started with "cell research"
At Rohto Pharmaceutical, "longevity" doesn't simply mean extending lifespan, but rather about people living long, healthy, and youthful lives. To support this state, the body's inherent function—homeostasis, the maintenance of harmony between the individual, organs, and cells—is essential. Our longevity research begins with "cell research" to scientifically understand the mechanisms of maintaining this homeostasis and unravel how to maintain a healthy and youthful state.
As we enter an era where people are expected to live to 100, living a healthy life is not only a personal wish but also an issue that affects the vitality of families, communities, and society as a whole. For many years, our company has conducted extensive cell research and cultivated expertise in areas related to human life and health, including gastrointestinal medicines, eye drops, skincare, oral medications, food products, medical treatments, and Regenerative medicine.
Through this accumulated knowledge, we have been able to use the power of science to unravel the mechanisms that support a healthy and youthful state. We believe that our mission is to implement the knowledge gained from this research into products and services that reach consumers.
As the first step, we will incorporate "phytoexosome" technology into our flagship skincare brand.
In addition to the cell science we have cultivated in the medical field, we have also been exploring the power of plants, microorganisms, and algae, including extracts and herbal medicines, for a long time. Building on this knowledge, we established the "Phytoscience Institute" in 2025 to scientifically unravel the potential of the life information contained in plants and algae. As a core technology of this institute, we are advancing research on "phytoexosomes," which focus on extracellular vesicles derived from plants, microorganisms, and algae.
Phytoexosomes represent a new research area that connects our accumulated cell science with the diverse potential of plants, microorganisms, and algae. We position them as an important technology for transforming "longevity" science into value that reaches consumers.
As the first step, we will be sequentially incorporating "phytoexosome" technology, derived from plants, microorganisms, and algae, into our flagship skincare brands "Hada Labo," "MELANO CC," and "Obagi." We will be expanding this technology widely, from high-end brands and clinic channels to mass-market brands, so that people can incorporate cutting-edge "longevity" science into their daily lives.
Towards the medium to long term
The new direction we announced today, "A company that promotes and realizes longevity," is not about launching a new business in isolation, but rather a strategy to leverage the cell research and business foundation we have cultivated since our founding, enhance the value of our existing businesses, and strengthen our foundation for medium- to long-term growth. Moving forward, we envision gradually expanding our value proposition, centered on longevity, from skincare to areas such as medicine, oral medication, and food.
Under the slogan "Connect for Well-being & Longevity," our company will expand Japan-originated "Longevity" science, based on cell research, to society and the world, contributing to people's healthy lives in the long term.
Our aspirations for evolving into a company that promotes and realizes longevity.
Rohto Pharmaceutical Co., Ltd. hereby declares its commitment to evolving into a company that promotes and realizes longevity, under the slogan "Connect for Well-being & Longevity." Since our founding, we have continuously asked ourselves what we can do to help each individual age healthily. Moving forward, we will continue to deepen our science, starting with cell research, and transform it into value that can be felt in daily life. Expanding the options for healthy living with Japan-originated "longevity" science—that is Rohto Pharmaceutical's challenge for the future.
President and Representative Director Hidetoshi Segi